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1. F. ROCHE AND A. MACDONALD..

LOG SAWING MACHINE. "APPLlcArloN FILED Dc. n

mama spn r23, 19,19.

LADMD `2' SHEETS-SHEET l5.

I. F. RocIII-z AAII'I A. MACDONALD'.

LOG SAWING MACHINE. .APPLICATION FILED DEc. II

"g 'Patented Sept 23, 1919.

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2 sIfETsesIIEET 2 ing lsaspe is an end elevationV of the structure JOHNI?. ROCHE AND ALAN AMA1-:DONAIllll'), ST; PAUL NOTA.

noe-same MAGHINE.

I Specification of Letters Patent. PatntedfSept, 23, 119119.

Application led December 11, 1917. Serial No. 206,577.

To all/whom t may concern.'

Be ltknown hat we, JOHN F. Room; and

.' MAGDoNALn, citizens of the United States, residing at St. Paul, inthe county of Ramsey and State of Minnesota, have invented a newand.useful VImprovement in Log-Sawing Machines, of which thefollowcification.

The prunary object of this invention is the saving of time, hand laborand expense 1n the sawing of timber and cutting lo into three dimensionmaterial. A further object is to provide in combination with a selfpropelled vehicle sawing-means driven Vby thesprime mover which propelsthe vehicle and which may be moved in any direction abolita longitudinalaxis, so ythat the cutting tool or sawmay bev adjusted to' cut the'timber at any desiredangle and elevation.

With these and other objects in .,view, which will be apparent from thefollowing description, our invention comprises the features ofconstruction and combination of parts hereinafter more particularlydesclinbedh and claimed. d i

t e accompan rawings orming partof speciicayiiill, Figure 1 is asideelevation of ourinvention; Fig. 2 is another side elevation looking?1 atthe opposite -side of .themachine from t at illustrated in Fig. l; Fig.3Y is a plan .of part of our invention; Fig. 4 is arcentral longitudinalsection of a detail showing the construction of art of the v timbersawing apparatus, and, 5

1 ustrated in Fig. .44

v In the drawings, let A indicate a self propelled motor vehicle havingthe usual prime.

mover B, forward steeringwheels C, main frame D. and rear tractionelements E. The rear traction elements which are adapted to.;be drivenbthe prime mover inthe usual marmer t rough the ordinary intermediatetransmission mechanism .F are preferably in theform'of -what arecommonly termed caterpillar driveshaving tread belts 2 passing arounddriven sprockets .or wheels 3 and 4, which are journaled upon the frameof the structure. These caterpillar Atreads enable the vehicle to bemoved over soft ground ,and through the woods, so .that -the device maybe placed close to standing trees convenient for usingA the sawingapparatus as will be hereinafter described forv cutting standing anddown timber.y

.he sawin apparatus Gry comprises f1- mam longitu inal drive shaft. 5,which is Journaled `in a pair of bearings 6 and 7 formed on part of theframe D of the velncle. Thev forward endAv of this, shaft is connectedto be driven by oneofthe gears such as of the transmissionfmechanism F,so that 1n one pos1t1on of the gear shiftinglever 9, which is employedfor/changing' the a speed at which the caterpillarrdrives are driven,the driving gear 8 is thrown into operation and revolved, causing theshaft 5- to be driven at suitable speed through-the use of connectedmechanism as'follows:

Journaled on the frameyofthe. structure. is another revolublelongitudinal-shaft 10, one endof whichprojects and is-journaled in thetransmission mechanism housing; 11 and carries a toothed pinion 12,-which meshes with the gear .8.. The outer end: of shaft carries a bevelgear 13, theA teeth of which mesh with bevel gear 14 carried onavertical counter shaft15, which-isv also journaled on the frameofthestructure. r`lhis counter shaft 15 isconnectedwiththe main longitudinalshaft 5, by'. apairofintermeshing bevel gears 16k and 17. Thus drivingmotiomistransmitted ,from theffgear 8 ofthe transmission mechanism toVthefmain drive shaft 5.

The-shaft cxtends rearwardlyof theve.- hicle, its bearing- 6 beingmounted V'upon suit-` able supportingV arms 18. Coupled .to .the

rearward extension ofgshaft 5 by'a suitable` universal joint Hisafr'eely swinging extensionl9 ofthe shaft member, 4the freely swingingend .of wh'ichfis journaled in the bearing 20 of a globularrcasing 21.This bearing and casing are rigidly supported Vouter surface of which ispartl 'sphericah Upon thispartly sphericalsur ace is journaled-aspll't-collar 25 and radiating from said collar are a plurality ofspokes 26, .the

y*outer ends of which carry the annulus 23.

Thus `the bearing 20 is supported by the braced annulus 23 and is freeto be located and moved with the shaft 19, but at all times is preventedfrom moving longitudinally on saidy shaft. The casing 21, which isformed integral with the bearing 2() has a partly spherical Vcontour andwithin this casing is journaled a counter spindle 27,

which is disposed at right angles Vto shaft 19 and projects from thecasino' at one end.

- respectively mounted upon members 27 land 19 in the casing 21. The sawor cutting tool J is detachably mounted upon the spindle 27.

by the nuts and washers 30 and 31 in the a usualmanner. The globular,casin 21 has an opening 32 in its side through W iich access is gainedfor inspecting the gears within said casing and lubricating them. Thisopening is normally closed by the cover late 33. In use the cutting toolwhich may e of the desired diameter can be guided at any elevation orangular osition by hand for cutting standing or own timber andthestructure described produces a rigid and eiicient support for thecutting member and its operating parts. The universal joint between theswinging and stationary shaft members 19 and 5 may be of any suitableconstruction, the ordinary type of universal joint being illustrated inthe drawings.

Constructed as part of the' main frame D is a turret casing made in twoparts 51 and 52, the former being rigid with said frame and the latterrevoluble in a horizontal plane on said casing member 51. Withinthis'particular part of the frame D, namely the turret, the shafts 10,15 and 40 extend and the gears 13, 14, 16 and 17 and 41 and 42 areplaced. The bearings 6 and 7 and arms 18 are carried by the revolublemember 52, thus permitting the shaft member 5 to swing in an are at therearof the machine and permittIing a wider range or swath of the cutterThe vehicle is also provided with auxiliary sawing or cutting means Kfor cutting-logs into three dimension stock, such as railway ties forillustration. This auxiliary sawing mechanism has a transverse drivinshaft 40 journaled upon the frame D of t e vehicle and driven by thedriving shaft 10 through intermediate intermeshing bevel gears 41 A and42. The outer end of .the transverse shaft 40 carries circular sawblades 43 placed over a table 44, said table being hinged at 45 to foldupon the side of frame D or other wise mounted. Suitable supportingmembers or legs 46 hinged to the table serve to support the outerportion of the table-upon the grund in horizontal position. At therearward end of the table is an inclined skid or carrier 47 upwhich thelogs to be out, are moved by a suitable log chain conveyer such as 48which is driventhrough speed reduc ing mechanism 49 connected with theshaft 40. Suitable adjustable guides 50 placed on the table serve toguide the logs in proper position in contact with the saws to be outthereby. The carrier mechanism and rotary saw blades 43 may bedisconnected from operation by separating the gears 41 and 42. Thetimber cutter J may also be disconnected when desired by separating thegears 16 and 17. 1n operation the machine may be moved from place toplace and conveniently positioned for use either for sawing standingordown timber or for cutting logs into three dimension stock.

In accordance with the patent statutes, we

have describedthe principles of operation of our invention, togetherwith the apparatus which we now consider to represent the bestembodiment thereof, but we desire to have it understood that theconstruction shown is only illustrative, and that the invention can becarried out by other means and applied to uses other than those aboveset forth within the scope of the following tending between the annulusand the bear-- ing, a circular saw supported from the bearing anddriving connections between the saw and the last named shaft.

2. The Acombination with a motor vehicle' and its gear casing, of aturret, a shaft vertically and' centrally disposed within said turret,means for driving said shaft from the gear casing, a rearwardlyprojecting4 rigid arm carried by the rotative member of the turret,alined bearings upon said arm and turret, a horizontally disposed shaftjournaled therein, bevel gearing between the vertical shaft and thehorizontally disposed shaft, thev bearings upon the 'rigid arm includinga hollow segment of a sphere,- a-

swinging shaft extension having universal connection with the horizontalshaft within said casing, an annulus having a bearing portion fittedupon the outer .face of said casing, a bearing for the swinging shaftextension remote from said easing, rigid connecting members between theannuius and the bearing, a housing supported from .the bearing, aspindle journaled therein and 1ying substantially at right angles to theswinging shaft extensiombevel gearing between the swinging shaftextension and the spindle and a rotative cutting element carried by saidspindle. e

' In testimony whereof, we have signed our names to this specification..v JOHN vF. ROCHE.

. 'ALAN MAQDONALD.

